Fig. 5From: Potential ramifications of the effects of sub-lethal ultraviolet B-radiation on the subsequent three subcultures of Lactobacillus fermentum BT 8219 during fermentation in biotin-supplemented soymilk and their probiotic propertiesEffect of pH 2.0 (solid line) and 3.0 (dotted line) on the viability of control (blue-shaded squares) and UV-treated (red-shaded triangles) L. fermentum BT 8219 cells at 37 °C for 180 min. a Parent cells, b first subculture, c second subculture, d third subculture. Control Untreated cells; a corresponding control was used for comparison in each subculture. Error bars SEM (n = 3). Asterisk P < 0.05 when comparing the control and UV-treated cells in an independent t testBack to article page